One of the country’s most senior Democrats has called a Republican congressman a “wannabe Trump”, after he was charged with assaulting a journalist and slamming him to the floor. Greg Gianforte, who is contesting a special election in Montana, was charged after being accused of body-slamming a reporter who was trying to ask him a question about healthcare. As voters went to the polls for a contest in which Mr Gianforte is taking on Democrat Rob Quist, House Minority Leader Nancy Pelosi said the congressman had failed to show any dignity.